package org.apache.archiva.consumers.core.repository;
   
   /*
    * Licensed to the Apache Software Foundation (ASF) under one
    * or more contributor license agreements.  See the NOTICE file
    * distributed with this work for additional information
    * regarding copyright ownership.  The ASF licenses this file
    * to you under the Apache License, Version 2.0 (the
    * "License"); you may not use this file except in compliance
   * with the License.  You may obtain a copy of the License at
   *
   *  http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing,
   * software distributed under the License is distributed on an
   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
   * KIND, either express or implied.  See the License for the
   * specific language governing permissions and limitations
   * under the License.
   */
  
  import org.apache.archiva.configuration.ArchivaConfiguration;
  import org.apache.archiva.configuration.ConfigurationNames;
  import org.apache.archiva.configuration.FileTypes;
  import org.apache.archiva.consumers.AbstractMonitoredConsumer;
  import org.apache.archiva.consumers.ConsumerException;
  import org.apache.archiva.consumers.KnownRepositoryContentConsumer;
  import org.apache.archiva.metadata.repository.RepositorySession;
  import org.apache.archiva.metadata.repository.RepositorySessionFactory;
  import org.apache.archiva.components.registry.Registry;
  import org.apache.archiva.components.registry.RegistryListener;
  import org.apache.archiva.repository.ManagedRepository;
  import org.apache.archiva.repository.ManagedRepositoryContent;
  import org.apache.archiva.repository.RepositoryContentFactory;
  import org.apache.archiva.repository.RepositoryRegistry;
  import org.apache.archiva.metadata.audit.RepositoryListener;
  import org.apache.archiva.repository.features.ArtifactCleanupFeature;
  import org.apache.archiva.repository.metadata.base.MetadataTools;
  import org.springframework.beans.factory.annotation.Autowired;
  import org.springframework.context.annotation.Scope;
  import org.springframework.stereotype.Service;
  
  import javax.annotation.PostConstruct;
  import javax.inject.Inject;
  import javax.inject.Named;
  import java.util.ArrayList;
  import java.util.Collections;
  import java.util.Date;
  import java.util.List;
  
  /**
   * Consumer for removing old snapshots in the repository based on the criteria
   * specified by the user.
   */
  @Service( "knownRepositoryContentConsumer#repository-purge" )
  @Scope( "prototype" )
  public class RepositoryPurgeConsumer
      extends AbstractMonitoredConsumer
      implements KnownRepositoryContentConsumer, RegistryListener
  {
      /**
       * default-value="repository-purge"
       */
      private String id = "repository-purge";
  
      /**
       * default-value="Purge repository of old snapshots"
       */
      private String description = "Purge repository of old snapshots";
  
      @Inject
      @Named( value = "archivaConfiguration#default" )
      private ArchivaConfiguration configuration;
  
      @Inject
      private RepositoryRegistry repositoryRegistry;
  
      @Inject
      @Named( value = "repositoryContentFactory#default" )
      private RepositoryContentFactory repositoryContentFactory;
  
      @Inject
      private MetadataTools metadataTools;
  
      @Inject
      @Named( value = "fileTypes" )
      private FileTypes filetypes;
  
      private List<String> includes = new ArrayList<>( );
  
      private RepositoryPurge repoPurge;
  
      private RepositoryPurge cleanUp;
  
      private boolean deleteReleasedSnapshots;
  
      /**
       *
       */
     @Inject
     @Autowired( required = false )
     private List<RepositoryListener> listeners = Collections.emptyList( );
 
     @Inject
     private RepositorySessionFactory repositorySessionFactory;
 
     private RepositorySession repositorySession;
 
     @Override
     public String getId( )
     {
         return this.id;
     }
 
     @Override
     public String getDescription( )
     {
         return this.description;
     }
 
     @Override
     public List<String> getExcludes( )
     {
         return getDefaultArtifactExclusions( );
     }
 
     @Override
     public List<String> getIncludes( )
     {
         return this.includes;
     }
 
     @Override
     public void beginScan( ManagedRepository repository, Date whenGathered )
         throws ConsumerException
     {
         ManagedRepositoryContent repositoryContent;
         repositoryContent = repository.getContent();
 
         try
         {
             repositorySession = repositorySessionFactory.createSession( );
         }
         catch ( org.apache.archiva.metadata.repository.MetadataRepositoryException e )
         {
             throw new ConsumerException( "Could not create session: " + e.getMessage( ), e );
         }
 
         if (repository.supportsFeature( ArtifactCleanupFeature.class ))
         {
             ArtifactCleanupFeature acf = repository.getFeature( ArtifactCleanupFeature.class ).get();
             int retentionPeriodInDays = acf.getRetentionPeriod( ).getDays( );
             int retentionCount = acf.getRetentionCount();
             if ( retentionPeriodInDays != 0 )
             {
                 repoPurge = new DaysOldRepositoryPurge( repositoryContent, retentionPeriodInDays,
                     retentionCount, repositorySession, listeners );
             }
             else
             {
                 repoPurge =
                     new RetentionCountRepositoryPurge( repositoryContent, retentionCount, repositorySession,
                         listeners );
             }
             deleteReleasedSnapshots = acf.isDeleteReleasedSnapshots( );
         } else {
             throw new ConsumerException( "The repository does not support the ArtifactCleanup feature "+repository.getId() );
         }
 
 
         cleanUp = new CleanupReleasedSnapshotsRepositoryPurge( repositoryContent, metadataTools, repositoryRegistry,
             repositorySession, listeners );
 
     }
 
     @Override
     public void beginScan( ManagedRepository repository, Date whenGathered, boolean executeOnEntireRepo )
         throws ConsumerException
     {
         beginScan( repository, whenGathered );
     }
 
     @Override
     public void processFile( String path )
         throws ConsumerException
     {
         try
         {
             if ( deleteReleasedSnapshots )
             {
                 cleanUp.process( path );
             }
             repoPurge.process( path );
         }
         catch ( RepositoryPurgeException rpe )
         {
             throw new ConsumerException( rpe.getMessage( ), rpe );
         }
     }
 
     @Override
     public void processFile( String path, boolean executeOnEntireRepo )
         throws Exception
     {
         processFile( path );
     }
 
     @Override
     public void completeScan( )
     {
         repositorySession.close( );
     }
 
     @Override
     public void completeScan( boolean executeOnEntireRepo )
     {
         completeScan( );
     }
 
     @Override
     public void afterConfigurationChange( Registry registry, String propertyName, Object propertyValue )
     {
         if ( ConfigurationNames.isRepositoryScanning( propertyName ) )
         {
             initIncludes( );
         }
     }
 
     @Override
     public void beforeConfigurationChange( Registry registry, String propertyName, Object propertyValue )
     {
         /* do nothing */
     }
 
     private void initIncludes( )
     {
         includes = new ArrayList<>( filetypes.getFileTypePatterns( FileTypes.ARTIFACTS ) );
     }
 
     @PostConstruct
     public void initialize( )
     {
         configuration.addChangeListener( this );
 
         initIncludes( );
     }
 
     @Override
     public boolean isProcessUnmodified( )
     {
         // we need to check all files for deletion, especially if not modified
         return true;
     }
 
     public ArchivaConfiguration getConfiguration( )
     {
         return configuration;
     }
 
     public void setConfiguration( ArchivaConfiguration configuration )
     {
         this.configuration = configuration;
     }
 
     public RepositoryContentFactory getRepositoryContentFactory( )
     {
         return repositoryContentFactory;
     }
 
     public void setRepositoryContentFactory( RepositoryContentFactory repositoryContentFactory )
     {
         this.repositoryContentFactory = repositoryContentFactory;
     }
 
     public MetadataTools getMetadataTools( )
     {
         return metadataTools;
     }
 
     public void setMetadataTools( MetadataTools metadataTools )
     {
         this.metadataTools = metadataTools;
     }
 
     public FileTypes getFiletypes( )
     {
         return filetypes;
     }
 
     public void setFiletypes( FileTypes filetypes )
     {
         this.filetypes = filetypes;
     }
 
     public RepositoryPurge getRepoPurge( )
     {
         return repoPurge;
     }
 
     public void setRepoPurge( RepositoryPurge repoPurge )
     {
         this.repoPurge = repoPurge;
     }
 
     public RepositoryPurge getCleanUp( )
     {
         return cleanUp;
     }
 
     public void setCleanUp( RepositoryPurge cleanUp )
     {
         this.cleanUp = cleanUp;
     }
 
     public boolean isDeleteReleasedSnapshots( )
     {
         return deleteReleasedSnapshots;
     }
 
     public void setDeleteReleasedSnapshots( boolean deleteReleasedSnapshots )
     {
         this.deleteReleasedSnapshots = deleteReleasedSnapshots;
     }
 
     public RepositorySessionFactory getRepositorySessionFactory( )
     {
         return repositorySessionFactory;
     }
 
     public void setRepositorySessionFactory( RepositorySessionFactory repositorySessionFactory )
     {
         this.repositorySessionFactory = repositorySessionFactory;
     }
 
 }